darkcomet | 0db831d1d77b42554d1da888b20343ecc98ebb7730ab8e72cb0907baecec43e7

Analysis

max time kernel
148s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16/10/2024, 09:20

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General

Target

4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Size

756KB
MD5

4c3dd8ed74bab80ff6e4ad60c194f99c
SHA1

b1c2ddd6f11c4b6f32071aec6d910c8a87cbf3bc
SHA256

0db831d1d77b42554d1da888b20343ecc98ebb7730ab8e72cb0907baecec43e7
SHA512

6095c339bd6698554f02d02fd5b02c5a00b799309019063692c714b126c9faabb943734d7dc0de9c97a94cd8a82d53be2f02153ee3a73a1135a4ff389caa791c
SSDEEP

12288:V9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKp:TAQ6Zx9cxTmOrucTIEFSpOGG

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2524 set thread context of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeSecurityPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeBackupPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeRestorePrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeShutdownPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeDebugPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeUndockPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: 33	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: 34	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: 35	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2916	explorer.exe
Token: SeSecurityPrivilege	2916	explorer.exe
Token: SeTakeOwnershipPrivilege	2916	explorer.exe
Token: SeLoadDriverPrivilege	2916	explorer.exe
Token: SeSystemProfilePrivilege	2916	explorer.exe
Token: SeSystemtimePrivilege	2916	explorer.exe
Token: SeProfSingleProcessPrivilege	2916	explorer.exe
Token: SeIncBasePriorityPrivilege	2916	explorer.exe
Token: SeCreatePagefilePrivilege	2916	explorer.exe
Token: SeBackupPrivilege	2916	explorer.exe
Token: SeRestorePrivilege	2916	explorer.exe
Token: SeShutdownPrivilege	2916	explorer.exe
Token: SeDebugPrivilege	2916	explorer.exe
Token: SeSystemEnvironmentPrivilege	2916	explorer.exe
Token: SeChangeNotifyPrivilege	2916	explorer.exe
Token: SeRemoteShutdownPrivilege	2916	explorer.exe
Token: SeUndockPrivilege	2916	explorer.exe
Token: SeManageVolumePrivilege	2916	explorer.exe
Token: SeImpersonatePrivilege	2916	explorer.exe
Token: SeCreateGlobalPrivilege	2916	explorer.exe
Token: 33	2916	explorer.exe
Token: 34	2916	explorer.exe
Token: 35	2916	explorer.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2404	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31
PID 2524 wrote to memory of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31
PID 2524 wrote to memory of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31
PID 2524 wrote to memory of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31
PID 2524 wrote to memory of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31
PID 2524 wrote to memory of 2916	2524	4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c3dd8ed74bab80ff6e4ad60c194f99c_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windupdt\winupdate.exe

Filesize
756KB

MD5
4c3dd8ed74bab80ff6e4ad60c194f99c

SHA1
b1c2ddd6f11c4b6f32071aec6d910c8a87cbf3bc

SHA256
0db831d1d77b42554d1da888b20343ecc98ebb7730ab8e72cb0907baecec43e7

SHA512
6095c339bd6698554f02d02fd5b02c5a00b799309019063692c714b126c9faabb943734d7dc0de9c97a94cd8a82d53be2f02153ee3a73a1135a4ff389caa791c

Download Submit
memory/2404-33-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2404-2-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2524-0-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2524-42-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-41-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-47-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2916-40-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-39-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-37-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-35-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-46-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-49-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-48-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download
memory/2916-50-0x0000000013140000-0x000000001320F000-memory.dmp

Filesize
828KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads